Brumm Joshua T

CEO & President at Dyne Therapeutics, Inc. · on record since Sep 18, 2020
Director at CRESCENT BIOPHARMA, INC. · on record since Jun 23, 2025
Chief Executive Officer at CRESCENT BIOPHARMA, INC. · on record since Jun 23, 2025
VP of Corporate Development at Zeltiq Aesthetics Inc · on record since Oct 18, 2011
EVP, Finance at PHARMACYCLICS INC · on record since Aug 13, 2012
COO and CFO at Aravive, Inc. · on record since Jan 31, 2017
See Remarks at Kaleido Biosciences, Inc. · on record since Feb 27, 2019
Director at Dyne Therapeutics, Inc. · on record since Sep 18, 2020

Insider trading activity of Brumm Joshua T

Transactions on record: 120; since Apr 30, 2012

Open-market buys: 1; $25K

Open-market sells: 46; $28.4M

Companies traded: 6; last filing Sep 18, 2026

Figures computed from official regulatory filings — .

Companies where Brumm Joshua T has traded

CRESCENT BIOPHARMA, INC.7 tx · $920.8K · Sep 18, 2026
Dyne Therapeutics, Inc.80 tx · $31.5M · Mar 12, 2024
Kaleido Biosciences, Inc.1 tx · Mar 4, 2019
Aravive, Inc.28 tx · $959.4K · Oct 23, 2017
PHARMACYCLICS INC2 tx · Oct 29, 2012
Zeltiq Aesthetics Inc2 tx · Apr 30, 2012

Track record of Brumm Joshua T

Insufficient history for a statistical track record (fewer than 5 open-market buys).

Transaction history of Brumm Joshua T

Co-insiders of Brumm Joshua T

This page republishes public regulatory disclosures.

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
CRESCENT BIOPHARMA, INC.Listing unverified	Sep 18, 2026	Sell	-1,610	17.90 USD	$28.8K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Sep 18, 2026	Sell	-7,837	16.71 USD	$131K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Jun 23, 2026	Sell	-42,305	17.99 USD	$761.1K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	AwardD (derivative)	180,467	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	Award	10,000	—	n/a (No price was disclosed in the filing)		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	Award	45,117	—	n/a (No price was disclosed in the filing)		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 10, 2025	AwardD (derivative)	345,672	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-40,072	25.42 USD	$1M		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-202,238	25.30 USD	$5.1M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	209,412	5.54 USD	$1.2M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-9,928	26.10 USD	$259.1K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	153,931	5.54 USD	$852.8K	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-8,618	25.93 USD	$223.5K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-7,769	26.12 USD	$202.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-435	27.38 USD	$11.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-153,931	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	50,000	5.54 USD	$277K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-160,670	26.72 USD	$4.3M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-209,412	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 11, 2024	Sell	-9,086	25.85 USD	$234.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Exercise	5,520	5.54 USD	$30.6K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Sell	-1,414	29.70 USD	$42K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	ExerciseD (derivative)	-57,843	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Sell	-74,090	29.23 USD	$2.2M		SEC

Company	Filed	Type	Qty	Price	Value · USD	Signals	Src
CRESCENT BIOPHARMA, INC.Listing unverified	Sep 18, 2026	Sell	-1,610	17.90 USD	$28.8K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Sep 18, 2026	Sell	-7,837	16.71 USD	$131K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Jun 23, 2026	Sell	-42,305	17.99 USD	$761.1K		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	AwardD (derivative)	180,467	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	Award	10,000	—	n/a (No price was disclosed in the filing)		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 17, 2025	Award	45,117	—	n/a (No price was disclosed in the filing)		SEC
CRESCENT BIOPHARMA, INC.Listing unverified	Dec 10, 2025	AwardD (derivative)	345,672	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-40,072	25.42 USD	$1M		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-202,238	25.30 USD	$5.1M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	209,412	5.54 USD	$1.2M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-9,928	26.10 USD	$259.1K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	153,931	5.54 USD	$852.8K	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-8,618	25.93 USD	$223.5K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-7,769	26.12 USD	$202.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-435	27.38 USD	$11.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-153,931	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-50,000	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Exercise	50,000	5.54 USD	$277K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	Sell	-160,670	26.72 USD	$4.3M	Unusual size	SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 12, 2024	ExerciseD (derivative)	-209,412	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 11, 2024	Sell	-9,086	25.85 USD	$234.9K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Exercise	5,520	5.54 USD	$30.6K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Sell	-1,414	29.70 USD	$42K		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	ExerciseD (derivative)	-57,843	0.00 USD	n/a (Non-cash transaction: the filing states a price of zero (award, gift, exercise))		SEC
Dyne Therapeutics, Inc.Listing unverified	Mar 1, 2024	Sell	-74,090	29.23 USD	$2.2M		SEC